Metric / Imperial HEX 4728 B42 Index 173E Spring Collets - Crawford, Select:
Crawford / other 4728 B42 173E Collets. 10mm (A) Crawford - Grooved, 3, very good condition, 2 countersinked holes in base rim. 13mm Crawford - Grooved, 3, slight scoring to top surface. 17mm Crawford - Grooved, 3, very good condition.